Obstetrics Calculator vs CPS App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Obstetrics Calculator
This medical app provides a comprehensive suite of tools for calculating gestational age, estimated due dates, and various risk assessments related to pregnancy and women's health. It includes calculators for maternity leave, cervical assessments, and cancer risk estimations, designed for healthcare professionals.
- Gestational age and due date calculation
- Multiple calculation methods (LMP, ultrasound, IVF)
- Maternity leave timeframe estimation
- Bishop Score and TOLAC probability
- Cancer risk estimations (Breast, Cervical, Ovarian)
- Follow-up after colposcopy
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Obstetric Calculator will help you determine gestational age in weeks and days as well as estimated due date using last menstrual period, ultrasound report, ovulation/IVF and other methods. This set of tools ans scales contains: - Estimated Due Date & Gestational Age by First Day of Last Menstrual Period - Estimated Due Date & Gestational Age by Ultrasound Report - Estimated Due Date & Gestational Age by Conception Date - Estimated Due Date & Gestational Age by Quickening (= Fetal Movements) - Estimated Due Date & Gestational Age from Given Date - Timeframe for Maternity Leave - Gestational Age & last menstrual period from Estimated Due Date - Gestational Age by Crown-Rump Length - Gestational Age by Fetal Biometry - Estimated Fetal Weight by Mother's Biometry - Bishop Score (Quick Cervix Assessment) - Probability of Successful Vaginal Birth after Cesarean Section (or Trial of Labor) - Breast Cancer Risk Estimation (Gail Model) - Cervical Cancer Risk Estimation (ASCCP 2019 Guidelines) - Ovarian Cancer Risk (O-RADS, ADNEX, ROMA) - Follow-Up after Colposcopy/Treatment of CIN Each tool is provided with instructions ("i" in the upper right corner). This app was designed for educational use by health care providers in the field of Obstetrics & Gynecology.
CPS App
This mobile application serves the insured population of the Caja Petrolera de Salud. It provides access to health services and information for members.
- Access health services
- Information for insured population
- Serves Caja Petrolera de Salud members
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Aplicación móvil para la población asegurada de la Caja Petrolera de Salud
Screenshots
Verdict
The clearest difference is in-app purchases: CPS App at none against Obstetrics Calculator's 2. CPS App also leads on ads (none vs shown). Obstetrics Calculator's advantage is update cadence (every 2 months vs every 45 months) and iOS requirement (13.0 vs 15.0). On price, rating, ratings volume and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Obstetrics Calculator sells 2 in-app purchases, starting at $1.99 per month. CPS App asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Obstetrics Calculator against 5.0 for CPS App. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Obstetrics Calculator ships an update every 2 months, CPS App every 45 months. The most recent releases landed on October 27, 2026 and October 16, 2026 respectively.
| Parameter | Obstetrics Calculator | CPS App |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | 54.5% of reviews | — |
| Number of ratings | 1 | 1 |
| Update frequency | Every 2 months — better | Every 45 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 90 MB | 28 MB |
| Age rating | 12+ | 12+ |
| Developer | Alexander Snegirev | Caja Petrolera de Salud |
Customer experience
Obstetrics Calculator
CPS App
In-app purchases
Obstetrics Calculator
- ObCalc Pro$1.991 Month
- Disable Ads$10.99
CPS App
No in-app purchases
Questions
Is Obstetrics Calculator free?
Is CPS App free?
Which has better reviews, Obstetrics Calculator or CPS App?
Do Obstetrics Calculator or CPS App have ads?
Which is updated more often, Obstetrics Calculator or CPS App?
Other comparisons
